Keywords: Curve-shortening self-similar lens.svg vesica piscis together with two collinear rays emanating from the corners of the lens This network of two arcs and two rays is the limiting shape for all networks of two curves and two collinear rays under the curve-shortening flow 2015-11-17 own David Eppstein other versions cc-zero Vesica piscis Uploaded with UploadWizard |